Платформа ЦРНП "Мирокод" для разработки проектов
https://git.mirocod.ru
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89 lines
2.5 KiB
89 lines
2.5 KiB
// Copyright (c) 2014 Couchbase, Inc. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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package registry |
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import ( |
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"fmt" |
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"github.com/blevesearch/bleve/analysis" |
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) |
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func RegisterAnalyzer(name string, constructor AnalyzerConstructor) { |
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_, exists := analyzers[name] |
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if exists { |
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panic(fmt.Errorf("attempted to register duplicate analyzer named '%s'", name)) |
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} |
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analyzers[name] = constructor |
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} |
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type AnalyzerConstructor func(config map[string]interface{}, cache *Cache) (*analysis.Analyzer, error) |
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type AnalyzerRegistry map[string]AnalyzerConstructor |
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type AnalyzerCache struct { |
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*ConcurrentCache |
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} |
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func NewAnalyzerCache() *AnalyzerCache { |
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return &AnalyzerCache{ |
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NewConcurrentCache(), |
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} |
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} |
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func AnalyzerBuild(name string, config map[string]interface{}, cache *Cache) (interface{}, error) { |
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cons, registered := analyzers[name] |
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if !registered { |
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return nil, fmt.Errorf("no analyzer with name or type '%s' registered", name) |
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} |
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analyzer, err := cons(config, cache) |
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if err != nil { |
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return nil, fmt.Errorf("error building analyzer: %v", err) |
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} |
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return analyzer, nil |
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} |
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func (c *AnalyzerCache) AnalyzerNamed(name string, cache *Cache) (*analysis.Analyzer, error) { |
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item, err := c.ItemNamed(name, cache, AnalyzerBuild) |
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if err != nil { |
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return nil, err |
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} |
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return item.(*analysis.Analyzer), nil |
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} |
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func (c *AnalyzerCache) DefineAnalyzer(name string, typ string, config map[string]interface{}, cache *Cache) (*analysis.Analyzer, error) { |
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item, err := c.DefineItem(name, typ, config, cache, AnalyzerBuild) |
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if err != nil { |
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if err == ErrAlreadyDefined { |
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return nil, fmt.Errorf("analyzer named '%s' already defined", name) |
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} |
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return nil, err |
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} |
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return item.(*analysis.Analyzer), nil |
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} |
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func AnalyzerTypesAndInstances() ([]string, []string) { |
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emptyConfig := map[string]interface{}{} |
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emptyCache := NewCache() |
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var types []string |
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var instances []string |
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for name, cons := range analyzers { |
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_, err := cons(emptyConfig, emptyCache) |
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if err == nil { |
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instances = append(instances, name) |
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} else { |
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types = append(types, name) |
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} |
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} |
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return types, instances |
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}
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